[C]找出100以内的素数

#include<stdio.h>int is_prime(int n)                    //子函数，判断是否为素数{    int i = 0;    int count = 0;    for(i = 1; i <= n; i++)    {        if(0 == n % i)        {            count++;        }    }    if(2 == count)    {        return 1;    }    else    {        return 0;    }}int main(){    int i = 0;    int count = 0;    for(i = 1; i <= 100; i++)    {        if(is_prime(i))        {            printf("%d\n",i);            count++;        }    }    printf("a total of %d prime numbers less than 100\n",count);    return 0;}